v0.0.5: WebSocket real-time messaging

Server:
- WS endpoint: /v1/ws/:fingerprint
- Connection registry in AppState (fingerprint → WS senders)
- On connect: flushes queued DB messages, then pushes in real-time
- send_message: pushes to WS if connected, falls back to DB queue
- Auto-cleanup on disconnect
- WS accepts both binary and JSON text frames for sending

Web client:
- Replaces 2-second HTTP polling with persistent WebSocket
- Auto-reconnects on disconnect (3-second backoff)
- Sends via WS when connected, HTTP fallback
- Messages arrive instantly (no polling delay)
- "Real-time connection established" shown on connect

HTTP polling still works:
- CLI recv command uses HTTP (unchanged)
- Web falls back to HTTP if WS fails
- Mules/scripts can still use HTTP API

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

warzone/crates/warzone-server/src/routes/mod.rs

@@ -3,8 +3,9 @@ pub mod auth;
 mod groups;
 mod health;
 mod keys;
-mod messages;
+pub mod messages;
 mod web;
+mod ws;
 
 use axum::Router;
 
@@ -18,6 +19,7 @@ pub fn router() -> Router<AppState> {
         .merge(groups::routes())
         .merge(aliases::routes())
         .merge(auth::routes())
+        .merge(ws::routes())
 }
 
 /// Web UI router (served at root, outside /v1)